[Sarah12345]

What mass (g) of AgBr is formed when 35.5 mL of 0.184 M AgNO3 is treated with an excess of aqueous hydrobromic acid (HBr)?

[kyle1990]

It's often helpful to write out the chemical equation to see what's going on:

AgNO3 + HBr ----> AgBr + HNO3

How many moles of AgNO3 are reacting? (Hint: since there is an "excess" of HBr added, the limiting reagent is AgNO3, thus, however many moles of AgNO3 there are, that's how many moles of AgBr are produced).
hey

[kingchemist]

Write a balanced equation for the reaction
HBr + AgNO3 ---> AgBr + HNO3
          1 mole        1 mole

So find the number of moles of AgNO3 using Volume in L x M
You can then see that the same number of moles of AgBr will be formed. (*)
Then find what 1 mole of AgBr weighs (approx 108+80 = 188g)
Then find what the calculated number of moles (*) weigh
hey